光学仪器实验室绝对辐射定标及现场质量跟踪

为保证现场测量离水辐射率的精度，对现场测量光谱仪进行严格的实验室绝对辐射定标是必不可少的。另外，由于现场试验环境复杂，要在野外长期试验，需要随时监测仪器的工作状态是否稳定。文章以加拿大Satlantic公司的光学仪器航空模拟器（SAS－Ⅱ）为例业阐述实验室绝对辐射定标的方法，类似可推广至同类光学传感器的实验室绝对辐射定标；根据SeaWiFS质量监控器（SQM－Ⅱ）监测剖面仪／表面仪的变化来阐述现场质量跟踪的方法。

In-lab Calibration of Optical Instrument and Its field Quality Tracking

In order to ensure the measurement precision of water-leaving radiance, it is vital to calibrate the optical instruments in lab. In addition, it is necessary to monitor the stability of the optical instruments during the long-term field test because of complicated field environment. In this paper, the method of in-lab absolute radiating calibration on the basis of SAS-II that is manufactured by Satlantic Inc. in Canada is expatiated. And a method to monitor the stability of the optical instrument is introduced. In the end, some results are given.